Hardystonite and Verdite Optical Properties

Hardystonite

Verdite

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1 Optical Properties

1.1 Luster

Vitreous, Resinous, Greasy

Vitreous, Silky

1.2 Pleochroism

Not Available

Extreme

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Handbook of mineralogy (2001)

Translucent

1.5 Refractive Index

1.6721.580

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Handbook of mineralogy (2001)

Translucent

Hardystonite and Verdite Optic Character

Hardystonite and Verdite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Hardystonite and Verdite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Hardystonite and Verdite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

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Hardystonite and Verdite Transparency

Similar to their colors, Hardystonite and Verdite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Hardystonite is Handbook of mineralogy (2001) while Hardystonite is Handbook of mineralogy (2001) in appearance.